What is the rarest metal on earth?
Could you tell me, what is considered to be the rarest metal that exists on our planet? I'm intrigued to know which metal is the most scarce and valuable among all the elements found naturally on Earth. I'm curious about its rarity, how it's sourced, and what unique properties or applications it might possess that make it so sought-after. Please elaborate on the characteristics that set this metal apart and why it holds such a distinguished position among its counterparts.